The Effect of Low-molecular-weight Organic Aci dson Phosphorus Release from Different Phosphates

doi:10.3321/j.issn:1000-7091.2001.01.019

Abstract

Abstract: The chemical extraction was used to study the effect of organic acids on phosphorus release from different synthetic phosphate compounds.It was indicated that phosphorus release was significantly stimulated for all of 5 synthetic phosphate compounds tested,and positively correlated with the concentration of organic acid.The ability of organic acids in mobilizing phosphorus from synthetic phosphate followed the order:citricoxalictartaricmalic acid.The extent of phosphorus mobilized from synthetic phosphate compounds followed the order:Ca₂-P＞Ca₈-P＞FePO₄＞Ca₁₀-P＞AlPO₄.

Key words: Low-molecular-weight organic acids, Synthetic phosphate compounds, Mobilization

CLC Number:

S158.3

LU Wenlong, CAO Yiping, ZHANG Fusuo. The Effect of Low-molecular-weight Organic Aci dson Phosphorus Release from Different Phosphates[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(1): 99-104. doi: 10.3321/j.issn:1000-7091.2001.01.019.

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